JavaBean is a coffee cup that is equipped with a LightBlue Bean microcontroller. JavaBean connects to your computer via bluetooth and tells you how much coffee you’ve consumed on the day. The number of cups of coffee consumed controls a visualization of an office environment. At the start of the day, when fewer cups have been consumed, the visual is pixelated and difficult to discern. As the day goes on and more cups are consumed, the visual becomes clearer and less pixelated, representing the believed effect of coffee on productivity.
Further documentation of JavaBean can be found here.